Is it permissible to use shampoo which contains keratin?

In the Name of Allah, the Most Gracious, the Most Merciful.

As-salāmu ‘alaykum wa-rahmatullāhi wa-barakātuh.

Keratin is one of a family of fibrous structural proteins. Keratin is the protein that protects epithelial cells from damage or stress. Keratin is extremely insoluble in water and organic solvents.1

It is permissible to use a shampoo containing keratin provided it is not sourced from Humans or Pigs.2

And Allah Ta’āla Knows Best

Huzaifah Deedat

Student Darul Iftaa
Lusaka, Zambia

Checked and Approved by,
Mufti Ebrahim Desai.